Disgraced NFL legend O.J. Simpson, who is currently serving a 33-year prison term for armed robbery, is once again in trouble for stealing something.

Simpson, 66, reportedly stole “more than a dozen” oatmeal cookies from his Nevada state prison cafeteria, the Daily Mail reports. According to the report, Simpson hid the cookies under his shirt and then walked from the cafeteria to his cell.

Prison guards apparently noticed that Simpson had something under his shirt, prompting an investigation at his cell. When asked about the contents of his shirt, the 66-year-old reportedly admitted to stealing more than a dozen cookies, which were subsequently confiscated.

“O.J. just stood there with a goofy grin on his face as the guard kept digging inside his shirt and throwing the cookies on the floor,” a source with knowledge of the incident told the National Enquirer. “The temptation of the cookies in the prison chow line was too much for him.”

Simpson’s alleged cookie heist was reportedly a source of entertainment for his fellow inmates. According to the National Enquirer, the other prisoners initially thought Simpson was hiding a cell phone or something similar. “So when the guard started pulling cookies out of O.J.’s shirt, the other inmates started laughing so hard they nearly fell over,” the source told the National Enquirer.

The prison guards could have cited Simpson for stealing the cookies, the Washington Times reports. However, they decided to let the 66-year-old off with a warning.

Simpson is known to suffer from severe diabetes, and doctors previously warned him to avoid unhealthy foods in an attempt to improve his condition, the Washington Times reports. Simpson has gained a significant amount of weight since he was first incarcerated in 2008 for armed robbery conviction, which came 13 years after he was acquitted in the famous 1995 criminal trial for the murders of his ex-wife Nicole Brown Simpson and her friend Ronald Goldman despite significant evidence against him.

The former football star is believed to have been embarrassed by the cookie-stealing incident, with the Daily Mail noting that eating cookies “is the only enjoyment he has left.”